Fix glitch in batch processing of incoming messages.

SignalServiceKit/src/Messages/OWSMessageManager.m

@@ -137,12 +137,16 @@ NS_ASSUME_NONNULL_BEGIN
 
 - (void)yapDatabaseModified:(NSNotification *)notification
 {
-    static dispatch_once_t onceToken;
+    if (AppReadiness.isAppReady) {
-    dispatch_once(&onceToken, ^{
+        [OWSMessageUtils.sharedManager updateApplicationBadgeCount];
-        [AppReadiness runNowOrWhenAppIsReady:^{
+    } else {
-            [OWSMessageUtils.sharedManager updateApplicationBadgeCount];
+        static dispatch_once_t onceToken;
-        }];
+        dispatch_once(&onceToken, ^{
-    });
+            [AppReadiness runNowOrWhenAppIsReady:^{
+                [OWSMessageUtils.sharedManager updateApplicationBadgeCount];
+            }];
+        });
+    }
 }
 
 #pragma mark - Blocking